133436023 has 16 divisors (see below), whose sum is σ = 157057344. Its totient is φ = 110972160.

The previous prime is 133435999. The next prime is 133436081. The reversal of 133436023 is 320634331.

133436023 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a cyclic number.

It is not a de Polignac number, because 133436023 - 2²⁵ = 99881591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133436123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174963 + ... + 175723.

It is an arithmetic number, because the mean of its divisors is an integer number (9816084).

Almost surely, 2^133436023 is an apocalyptic number.

133436023 is a deficient number, since it is larger than the sum of its proper divisors (23621321).

133436023 is an equidigital number, since it uses as much as digits as its factorization.

133436023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 133436023 is about 11551.4511209631. The cubic root of 133436023 is about 511.0040747068.

The spelling of 133436023 in words is "one hundred thirty-three million, four hundred thirty-six thousand, twenty-three".